21666802

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{5231}}^1$

素因数の和:5361

約数の個数: 16

約数和(自身を含む): 34531200

約数和(自身を除く): 12864398

約数列:

[1, 2, 19, 38, 109, 218, 2071, 4142, 5231, 10462, 99389, 198778, 570179, 1140358, 10833401, 21666802]

約数ペア:

[(1, 21666802), (2, 10833401), (19, 1140358), (38, 570179), (109, 198778), (218, 99389), (2071, 10462), (4142, 5231)]